Lasting-jack



(No Model.)

3 Sheets-Sheet 1.

n. P. P'EWTHERS.-

. LASTING JACK. No. 548,137. Patent ed Oct. 15,1895.

amvewtoz ANDRKW EGRAHAM. PNUTO-UTMD. WASDHNGTOILIUJ (No Model.) v 3Sheath-Sheet 2.

D. P. PEWTHERS..

LASTING JACK.

Pate nted'Oct. 15, 1895.

ANDREW B GRANAMfHOTOUTHQWASHINGTON.D.C

(No Model.) 3 Sheets-Sheet 3.

1). rnnw'rnmas. LASTING JACK.

.No. 548,137. Paten ted 0012.15, 1895.

Illlllll h (9 IIIIIIIIHHH mum" D ATENT Fries.

DANIEL P. PEWTHERS, OF PORTSMOUTH, OI-IIO.

LASTlNG-JAC K.

SPECIFICATION forming part of Letters Patent No. 548,137, dated October15, 1895.

Application filed May 24, 1895.

To aZZ whom it may cancer-11;: I

Be it known that I, DANIEL P. PEWTHERS of Portsmouth, in the county ofScioto and State of Ohio, have invented certain new and usefulImprovements in Lasting-Jacks; and I do hereby declare the following tobe afull, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to an improvement in lasting-jacks, the objectbeing to provide simple and efficient means for holding lasts of varioussizes in any desired position while lasting by hand.

With this end in view my invention consists in certain novel features ofconstruction and combinations of parts, as will be hereinafter more fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a View of my improvement. Fig.2 is a view in vertical section of same. Fig. 3 is a view in elevation,taken at right angles to Fig. 1; and Fig. 4 is a plan view of the table.

A represents a suitable base or support, to which is secured a ring 1,the inner face of which is provided with an annular recess 2, withinwhich is revolubly secured the flanged end 3 of sleeve 4. Sleeve 4isinternally screwthreaded and encircles the internally-screwthreadedstandard or upright 5, the lower end of which is revolubly secured orswiveled to base or support A, while its upper end is secured to thecross-piece of the frame 6 by meanso a screw-threaded bolt 7, whichlatter extends some distance into said upright 5, so as to form a rigidconnection between said frame and upright. Encircling upright 5 is anexternally-screw-threaded ferrule 8, the lower end of which is screwedinto the upper end of sleeve 4. Surrounding ferrule 8 is a casing9,which latter is provided with a vertical recess 10, into whichprojects a lug or pin 11, carried. by said ferrule, whereby sidewisemovement of the casing is prevented, and to the upper end of this casingthe frame 6 is secured by screws or equivalent means. Interposed betweensleeve 4 and casing 9 is a nut 12, by means of which the height of themachine is regulated.

The frame 6 is composed of twohollow arms 13 14, which are connectedtogether by the Serial No. 550,560- No model.)

cross-piece 6'. Projecting upwardly from arm 13 are the brackets 15 16,each of which is provided with a journal-box 17, within which isjournaled the axle 18 of balance-wheel 19. Integral with axlel8 isdownwardly-projecting L.-shaped arm 20, one end of which is providedwith a recess 21, into which communicates hole 22, said hole beingadapted to receive the downwardly-projecting stem 23 of U-shaped yoke24. This stem 23 is provided with a square portion 25, on which isseated a washer 26, While the remaining portion of said stem isscrew-threaded, so as to receive the nut 27. interposed between washer26 and nut 27 is a coiled spring 28, which latter, when contracted byturning nut 27, prevents movement of the U-shaped yoke 24 after thelatter has been adjusted in any desired position.- 7

Arm 29 of U-sllaped yoke 24 is constructed partly hollow and is providedwithin said hollow portion with a spring-actuated heel-post 30, thelower or enlarged portion thereof being provided with a shank 31, incontact with which works the end of thumbscrew 32, by means of whichpost 30 maybe moved either backward or forward, so as to be in aposition to enter holes bored at different angles in the last. The headof thumbscrew 32 is located in a recess formed by the bottom of arm 29and the pivotally-connected guard 33, which latter is locked againstaccidental displacement by any suitable means.

By thus inclosing the head of thumb-screw 32 the accidental displacementof said thumbscrew is prevented. Arm 34 of yoke 24 is provided with apivotally-connected toe-support 35, the inner face of which isbifurcated, as at 36, Within which is pivotally connected aspring-actuated dog 36', which latter is adapted to engage the toothedsegment 37, carried by the upper inner end of said arm 34. By means ofdog 36 the pivotal toe-support 35 is adjusted as desired. By thus makingboth the heel and toe supports adjustable it will be seen that lasts ofvarious sizes can be accommodated.

Sleeve 4 is provided with oppositely-located openings 38, which latterare adapted to register with like openings 39, located in upright 5.-Passing through and projecting on the ICO outside of said openings isthe lever 40, fulcrumed to sleeve 4 at the point 42, one end of saidlever being provided with a weight 43 and the opposite end thereof witha treadle 44, by means of which the mechanism to be hereinafterdescribed is operated. Pivotally connected to lever on either side ofsleeve 4 are the adjustable connecting-rods 45 46, the upper end of theformer being pivotally connected to one end of the pivotally-supportedlever 47, while the latter is pivotally connected to the short arm ofbell-crank lever or support 48, which latter is pivoted to frame 6. Tothe opposite end of lever 47 is secured the lower end of brake-rod 49,the upper end of which latter is connected to the brake-shoe 50, whichis held normally in engagement with the rim of ba1ance-wheel19 by meansof the coiled spring 51, which encircles brake-rod 49. When the bottomface of L-shaped arm 20 is in contact with the upper end of bell-cranklever or support 48, the latter is adapted to act as a rest to receiveany strain that might be imparted to said ai'ni during the process oflasting.

From the foregoing it will be apparent that as L-shaped arm 20 isintegral with axle 18 it can be moved to any desired point within thearc of a circle and maintained in such position by the action of brakeon the rim of balance-wheel 19. The position of arm 20 may be changed atpleasure by removing the pressure of brake 50 from off of wheel 19,which operation is accomplished by applying pressure to treadle 44.

In order to accommodateoperators who are unable to stand while at work,I have provided the following additional mechanism for operatingbell-crank lever or support 48 and brake 50: Arm 14 of the frame isprovided with a recess 51, which latter is in communication with therecess within which moves the upright portion of bell-crank lever orsupport 48. To this upright portion of said lever is pivotally connectedone end of rod 52, the other end of said rod being pivotally connectedto the lower end of crank 53, which latter is pivotally connected withinrecess 54, formed in arm 13, by means of shaft 55, said shaft beingi'ernovably secured to said crank by means of a set-screw 56,0arried bythe upper outer face of said crank. By turning shaft 55 in the desireddirection the upper end of lever or support 48 can be moved out ofcontact with the bottom face of L-shaped arm 20. This movement alsoreleases brake 50 from out of engagement with the rim of balance-wheel19. As before stated, arm or support 48 can be swung on its axis to anydesired position within the arc of a circle and be locked thereinagainst accidental movement by the action of brake-shoe 50, and,further, U-shaped yoke 24 can also be turned on its pivot to any desiredposition within the arc of a circle and be locked in such position bythe nut 27 and spring 28, and hence it will be seen that the work to beoperated upon can be adjusted to a position most convenient to theoperator.

By turning nut 12 and the adjusting-rod 45 46 in the desired directionthe framework supporting arm 48 and U-shaped yoke may be raisedorlowered, as necessity demands. After the machine has been adjusted tothe proper height, rods 45 and 46 are locked against movement by meansof the screw-threaded nuts 57, two of which are carried by each of saidadjusting-rods. It will also be seen that by revolubly mounting sleeve 4and upright 5 in base or support A the position of the entire machinemay be changedat pleasure, so that the change of position on the partofthe operator is un-' necessary.

Supported on shoulders 59, which latter are formed integraljwith arms 13and 14, is atable 60, which is providedwith recesses 61 62 for thereception of said arms 13 and 14. This table is provided withhinge-connected leaves 63, 64, 65, and 66. The table is also providedwithtwo openings 67, each of which is located directly over the ends ofshaft 55 for the passage upward of the operating lever or levers 68, bymeans of which the anvil face of the bell-crank lever or support 48 isoperated and the brake'shoe 5O controlled.

It is evident that changes in the construction and relative arrangementof the several parts might be made without avoiding my invention, andhence I would have it understood that I do not restrict myself to theparticnlar construction and arrangement of the parts shown anddescribed; but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a lasting jack, the combination with a movable support and a framepivoted thereto and adapted to carry a last and having a friction wheelthereon, of a frictional device car ried by the movable support andadapted to engage the Wheel on the movable frame for holding the latterin any desired position, sub stantially asset forth.

2. In a lasting jack, the combination with a support, a movable framepivoted thereto, a wheel on the movable frame, and a brake arranged toengage the periphery of the wheel for holding the frame in any desiredposition relative to the support, of last carrying de vices movablysupported on the movable frame, substantially as set forth.

3. In a lasting jack, the combination with a frame, of an arm pivotallyconnected thereto and having last carrying devices connected thereto, abalance wheel on said arm and a brake operating on the rim of saidbalance wheel for locking the arm in any desired position, substantiallyas set forth.

4. In a lasting jack, the combination with a frame and an arm pivotallysupported thereon and having last carrying devices connected therewith,of a supportand locking mechanism operating in connection with the armand means for simultaneously operating said anvil and locking mechanism,substantially as set forth.

5. In a lasting jack, the combination with a frame and an arm pivotallysupported thereon and having last carrying devices connected therewith,of a support and a brake, means connecting them whereby they areoperated simultaneously and a lever for operating said parts,substantially as set forth.

6. In a lasting jack, the combination with a frame and an arm pivotallysupported thereon and having last carrying devices connected therewith,of a support and a brake, levers connected to each of said parts and anoperating lever and rods extending from said operating lever andconnecting it with the levers which are connected to the support andbrake, respectively, substantially as set forth.

7. In a lasting jack, the combination with a frame and an arm pivotallysupported thereon and having last carrying devices connected therewith,of a bell-crank lever pivoted to the frame and a support on said leveradapted to support the arm in one of its positions and an operatingleverconnected with said bell crank lever, substantially as set forth.

8. In a lasting jack, the combination with a frame, an arm pivotallysupported thereon and having last carrying devices connected therewith,and a balance wheel connected to said arm, of a spring actuated brakeadapted to operate upon said wheel to lock the arm in any of itspositions, and an operating lever for removing said brake from thewheel, substantially as set forth.

9. In a lasting jack, the combination with a frame and an arm pivotallysupported thereon, said arm having a balance wheel and last carryingdevices connected therewith, of a spring actuating sliding brake, alever connected therewith, and operating lever and a rod connectin gsaid levers, substantially as set forth.

dental displacement of the set screw, substantially as set forth.

11. In a lastingjack, the combination with a base, and a frame, of ascrew threaded ferrule pivotally connected with the base, a casing onsaid ferrule to which the frame is secured said casing having anelongated recess, a projection extending from the ferrule into saidrecess and a nut adapted to turn on the ferrule and support the casingwhereby to raise or lower said casing when it is turned, substantiallyas set forth.

12. In alastingjaok, the combination with a base and frame, of astandard, means for raising and lowering the frame, a support, a brake,an operating lever and extensible rods extending from the operatinglever to the support and brake respectively, substantially as set forth.

13. Inalastingjack, the combination with a frame having two rigid armsthereon, and an arm pivotally connected with one of said rigid arms,said pivoted arm adapted to swing into proximity to one of the rigidarms when in one of its positions, of a removable table having recessesadapted to receive the rigid arms, said table held from being removedfrom the frame by the pivoted arm when in its position in proximity tothe rigid arm, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

DANIEL P. PEWTHERS.

Witnesses:

S. G. NOTTINGHAM, W. A. OoNNoLLEY.

